Core TradesQuestion 38 of 700
An air-side economizer on an HVAC system provides energy savings PRIMARILY by:
a.Recovering heat from exhaust air in winter
b.Raising refrigerant pressure for faster cooling
c.Filtering fine particulates from the supply air
d.Using cool outdoor air for free cooling when conditions allow
Explanation
An economizer brings in cool outside air to meet cooling loads without running the compressor, saving energy when outdoor conditions are favorable. It is not primarily a heat-recovery, pressure-boost, or filtration device.
Law Reference: 2025 CA Energy Code, Title 24 Part 6Practice all 700 questions free — no signup required.
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